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Lab Solution

Automatic Mass Comparators

Maximum capacity [Max] 10,2kg
Readability [d] 0,1mg



Mass comparator AKM-2/10 series featuring automatic mass loader enables automatic determination of mass deviations of a single weight in a single cycle. The system of automatic mass comparator is commonly applicable in mass measuring laboratories, and particularly in certification units for weights classes E and F.

Design and Functionality:

The supervising part of a mass comparator is a digital module which cooperates with a controller of instrument’s mechanical components. The automatic mass loader features a basis with self-centring fields, a robot and a steel body. The digital module and the robot are located in mass comparator’s weighing chamber. The loading robot is controlled by the computer’s controller. The instrument is operated by means of digital display which is plugged to mass comparator’s controller.

Lengthwise shift of the loading robot with weights is carried out automatically using solenoid actuators. Additional software functions enable loading and taking off the weights, data processing and storing, and data export to instrument’s memory.


Maximum capacity [Max] 10,2 kg
Readability [d] 0,1 mg
Weighing pan dimensions ø90 mm
Repeatability at low load 0,2 mg (500 g) 
Repeatability at nominal load 0,2 mg (10 kg) 
Stabilization time 30 s
Operating temperature +10 ÷ +30 °C
Power supply 110 ÷ 230 V AC / 50 ÷ 60 Hz / 13,5 ÷ 16 V DC 
Packaging dimensions 1050×800×1320 mm
Atmospheric humidity 40% ÷ 60% 
Electric compensation range - 100 ÷ + 200 g
Adjustment external 
Working temperature change rate ± 0,5 °C / 12 h (± 0,3 °C / 4 h) 
Atmospheric humidity change rate ± 2 % / 12 h 
Weighing device dimensions 950×650×1150 
Controling device dimensions 206×140×70 mm 
Net weight/gross weight (comparator) 30 kg / 59 kg 
Net weight/gross weight (automat) 230 kg / 350 kg 
Supplementary weights internal half automatic 
Supplementary weights external
E1 2 kg ÷ 10 kg 
E2 500 g ÷ 10 kg 
F1 500 g ÷ 10 kg 
F2 500 g ÷ 10 kg 
Eccentricity (tested load) 0 mg

Repeatability is expressed as a standard deviation determined for 6 ABBA cycles. Standard deviation is experimentally determined under ambient conditions for calibration of E1 class mass standards specified in OIML R111 (Table C.1.) document.


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